[SEBA-493] Fixing swagger documentation

Change-Id: I71c11b1bf0b03b9663cb09f9d286658d0dfad660
diff --git a/docs/venv-xosdocs.sh b/docs/venv-xosdocs.sh
index 74bc278..7f34502 100755
--- a/docs/venv-xosdocs.sh
+++ b/docs/venv-xosdocs.sh
@@ -35,4 +35,4 @@
 
 # install pip packages
 pip install -e $BASEDIR/$VENVDIR/../../lib/xos-genx
-pip install plyxproto jinja2 pattern astunparse pyyaml colorama
+pip install plyxproto jinja2 astunparse pyyaml colorama